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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 * distributed under the License is distributed on an "AS IS" BASIS,
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// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package org.openqa.selenium.net;

/**
 * Identifies the ephemeral port range for a given environment.
 *
 * When trying to locate a "random" free port, it is important
 * to not allocate within the ephemeral range, since these
 * can be allocated at any time, and the probability of
 * race conditions increases as the number of recently used ports
 * increases, something which is quite common when running the
 * webdriver tests.
 *
 */
public interface EphemeralPortRangeDetector
{

  /**
   * Returns the first port in the ephemeral range
   * @return The first ephemeral port
   */
  public int getLowestEphemeralPort();
  /**
   * Returns the last port that could be searched for free ports
   * @return The first port that may be free
   */
  public int getHighestEphemeralPort();

}
